6694378252 has 48 divisors (see below), whose sum is σ = 12986168832. Its totient is φ = 3003418880.

The previous prime is 6694378157. The next prime is 6694378261. The reversal of 6694378252 is 2528734966.

It is a self number, because there is not a number n which added to its sum of digits gives 6694378252.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 479523 + ... + 493285.

It is an arithmetic number, because the mean of its divisors is an integer number (270545184).

Almost surely, 2^6694378252 is an apocalyptic number.

It is an amenable number.

6694378252 is a deficient number, since it is larger than the sum of its proper divisors (6291790580).

6694378252 is a wasteful number, since it uses less digits than its factorization.

6694378252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14118 (or 14116 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 52.

The square root of 6694378252 is about 81819.1802207771. The cubic root of 6694378252 is about 1884.6762128465.

The spelling of 6694378252 in words is "six billion, six hundred ninety-four million, three hundred seventy-eight thousand, two hundred fifty-two".